Two-photon absorption spectra of a near-infrared 2-azaazulene polymethine dye: solvation and ground-state symmetry breaking

2013 ◽  
Vol 15 (20) ◽  
pp. 7666 ◽  
Author(s):  
Honghua Hu ◽  
Olga V. Przhonska ◽  
Francesca Terenziani ◽  
Anna Painelli ◽  
Dmitry Fishman ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Absorption Spectra ◽  
Ground State ◽  
Near Infrared ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Polymethine Dye

Two-photon Absorption Spectra of a Near-IR Polymethine Molecule with a Broken Ground-State Symmetry

2011 ◽  
Author(s):  
Honghua Hu ◽  
Dmitry Fishman ◽  
Scott Webster ◽  
Olga V. Przhonska ◽  
Julia L. Bricks ◽  
...  
Keyword(s):  
Absorption Spectra ◽  
Ground State ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Near Ir

An improved singlet oxygen sensitizer with two-photon absorption and emission in the biological transparency window as a result of ground state symmetry-breaking

2012 ◽  
Vol 48 (11) ◽  
pp. 1689-1691 ◽  
Author(s):  
Thibault Gallavardin ◽  
Chloé Armagnat ◽  
Olivier Maury ◽  
Patrice L. Baldeck ◽  
Mikael Lindgren ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Singlet Oxygen ◽  
Ground State ◽  
Transparency Window ◽  
Photon Absorption ◽  
Absorption And Emission ◽  
Two Photon Absorption ◽  
Two Photon

Ab initiocalculations of two-photon absorption spectra in semiconductors

1995 ◽  
Vol 52 (7) ◽  
pp. 4986-4997 ◽  
Author(s):  
Misao Murayama ◽  
Takashi Nakayama
Keyword(s):  
Absorption Spectra ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

Simulation of two-photon absorption spectra of by direct calculation

2006 ◽  
Vol 118 (2) ◽  
pp. 205-219 ◽  
Author(s):  
G.W. Burdick ◽  
A. Burdick ◽  
V. Deev ◽  
Chang-Kui Duan ◽  
M.F. Reid
Keyword(s):  
Absorption Spectra ◽  
Direct Calculation ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon

Fluorescence anisotropy in indole under two-photon excitation in the spectral range 385–510 nm

2018 ◽  
Vol 20 (30) ◽  
pp. 19922-19931 ◽  
Author(s):  
M. E. Sasin ◽  
A. G. Smolin ◽  
K.-H. Gericke ◽  
E. Tokunaga ◽  
O. S. Vasyutinskii
Keyword(s):  
Propylene Glycol ◽  
Excited States ◽  
Spectral Range ◽  
Ground State ◽  
Fluorescence Anisotropy ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Photon Excitation ◽  
Molecular Ground State

This paper presents the detailed study of two-photon excited fluorescence in indole dissolved in propylene glycol produced by two-photon absorption from the molecular ground state to several high lying excited states.

scholarly journals Measurement of degenerate two-photon absorption spectra of a series of developed two-photon initiators using a dispersive white light continuum Z-scan

2017 ◽  
Vol 111 (7) ◽  
pp. 071901 ◽  
Author(s):  
Aliasghar Ajami ◽  
Wolfgang Husinsky ◽  
Maximilian Tromayer ◽  
Peter Gruber ◽  
Robert Liska ◽  
...  
Keyword(s):  
Absorption Spectra ◽  
White Light ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
White Light Continuum ◽  
Two Photon

scholarly journals Polyfluorenylacetylene for near-infrared laser protection: polymer synthesis, optical limiting mechanism and relationship between molecular structure and properties

RSC Advances ◽  
2017 ◽  
Vol 7 (85) ◽  
pp. 53785-53796 ◽  
Author(s):  
Gang Zhao ◽  
Yan Feng ◽  
Shanyi Guang ◽  
Hongyao Xu ◽  
Naibo Lin ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Near Infrared ◽  
Optical Limiting ◽  
High Thermal Stability ◽  
Photon Absorption ◽  
Structure And Properties ◽  
Absorption Mechanism ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Good Solubility

The incorporation of styryl/stilbene–fluorene into polyacetylenes not only endowed the polymers with novel near-infrared optical limiting properties based on a two-photon absorption mechanism but good solubility and high thermal stability.

scholarly journals Two-photon excited deep-red and near-infrared emissive organic co-crystals

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Yu Wang ◽  
Huang Wu ◽  
Penghao Li ◽  
Su Chen ◽  
Leighton O. Jones ◽  
...  
Keyword(s):  
Cross Sections ◽  
Optical Materials ◽  
Near Infrared ◽  
Infrared Emission ◽  
Photon Absorption ◽  
Electromagnetic Spectrum ◽  
Absorption Bands ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Near Infrared Emission

Abstract Two-photon excited near-infrared fluorescence materials have garnered considerable attention because of their superior optical penetration, higher spatial resolution, and lower optical scattering compared with other optical materials. Herein, a convenient and efficient supramolecular approach is used to synthesize a two-photon excited near-infrared emissive co-crystalline material. A naphthalenediimide-based triangular macrocycle and coronene form selectively two co-crystals. The triangle-shaped co-crystal emits deep-red fluorescence, while the quadrangle-shaped co-crystal displays deep-red and near-infrared emission centered on 668 nm, which represents a 162 nm red-shift compared with its precursors. Benefiting from intermolecular charge transfer interactions, the two co-crystals possess higher calculated two-photon absorption cross-sections than those of their individual constituents. Their two-photon absorption bands reach into the NIR-II region of the electromagnetic spectrum. The quadrangle-shaped co-crystal constitutes a unique material that exhibits two-photon absorption and near-infrared emission simultaneously. This co-crystallization strategy holds considerable promise for the future design and synthesis of more advanced optical materials.

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